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Re: dwarf2 frame unwinder assumptions on SP
Mark Kettenis wrote:
>
> Date: Mon, 11 Jul 2005 12:03:34 -0400
> From: Daniel Jacobowitz <drow@false.org>
>
> On Mon, Jul 11, 2005 at 05:58:14PM +0200, Christophe LYON wrote:
> > I don't see what to do in init_reg without adding a new value to the
> > dwarf2_frame_reg_rule enum. Do you mean changing the semantics of
> > DWARF2_FRAME_REG_CFA and provide a frame_prev_register() method
> > to interpret it accordingly?
>
> No. Change it globally in dwarf2-frame.c, since the offset field is
> currently unused with that rule.
>
> It's probably better to introduce DWARF2_FRAME_REG_CFA_OFFSET just
> like we did for DWARF2_FRAME_REG_RA_OFFSET. That would be #1 on your
> list, Christophe.
>
OK thanks. That way my preferred solution, but needed approval before
proceeding. It's very similar to what Daniel suggested, and works
well.
Christophe.